"I just purchased this boot, and I had to purchase a full size and a half larger than I usually wear. Normally, I purchase an 8 - 8-1/2. These come only in full sizes, so I tried a 9. It was way too short. A 10 fits perfectly, although a little loose in the heel with thin socks. I love the soft fleecy cuff, and it is very easy to tuck pants into the boot. I can't wait for it to rain so I can wear them!"